Aeroplane



July 5, 1932 c. A. GROSSER I 1,366,161

AEROPLANE Filed June 2, 1931 INVENTOR. d. en

B; his Attornel.

Patented July 5, 1932 iJNITED STATES oAaL AUGUST GROSSER, or K'ILLARNEY,BGGGABRI, Nnwlsou'rn WALES, AUSTRALIA AEBOPLANE Application med :rune 2,1931. semaine. 541,576.

The invention relates to aeronautics and has for its object theprovision oi"1neans whereby nose diving and rolling of an aeroplane maybe prevented.

Apparatus according to my invention mayV be brought into operation bythe pilot when for any reason dangerous rolling appears likely to occuror nose diving has occurredright angles upon a line corresponding to theaxis of the stalk and tapering at both ends. The stalk will under normalconditions lie nearly horizontal with the vanes so disposed that thelower part of the then vertical vane will be received in an opening atthe middle of the wing of the aeroplane and the horizontal vane will beparallel with the top of the wing and a little above it. y

With the vanes so disposed resistance presented to air will be onlysuiiicient to produce tendency in the stalk to turn upwardly andconsequently when a restraining rope is released by the aviator it willassume vertical position.

The rope is led to the drum of a winch by which the stabilizer may bedrawn down to and retained in its normal position.

There may be two or more sets of stabilizing apparatus, their stalksbeing arranged in line one behind the other and both or all dle wheelwhich is rotated by the upward current of air and imparts motion to anlair.

I will now describe invention in detail Y f by reference to the drawingwherein Fig. 1 isa side elevationand Fig. 2 a corresponding plan.

The stalk 1 is pivoted at 2 upon a standard 3 fixedin the aeroplanebody41 and has'ixed Vupon. its outer end a stabilizer comprised of thekvanes 5, and 6 which cross each other at right angles and convergetowards a point 7 at one end and towards a point 8 at the other end.

cess in the middle of the plane wing while the vane 6 will be nearlyhorizontal and a little above the wing.

As showniin dotted lines Fig. 1 the lower i part of vane 5 will normallypass into a re.

The stalk is held down by a rope 9 whichn V passes around guide sheaves10 and 11 to the barrel 12 of a'winch having the usual ratchet wheel 1.3and retaining pawl 14.

The pawl is adapted to be readily released 1 bythe aviator to permit thebarrel to rotate and allow the stem to assume vertical position.

Another similar stabilizer 15 is xed to a stalk 16 pivoted at 17.

A rope 18 connecting stalks 1 and 16 re-` tains the latter stalk in itsnormal position and serves as a stay when both stalks are vertical.

Thelower part ofthe vane 19 of stabilizer o; 15 normally lies in arecess in the body of the v aeroplane.

Rotatably mounted in brackets 20 upon each side of the body isan airpaddle wheel 21 the paddles being disposed longitudinally to the body.

Upon the axle 22 of the paddle wheel is fixed an air screw 23 which isconstructed in the usual manner to impart forward mo'- tion to theaeroplane.

more than half of the wheel upon one sidel of its axis from air currentdue to the fall of the aeroplane, whereby pressure of air on the Acurved windshield '24 shields a little u paddles of theother part causesthe wheel to rotate. y

I claim A For the purpose `speci'ed in combination an.V aeroplane,rotatable paddle wheels located one upon each side of the body thereof,the paddles of the Wheels longitudinally disposed relatively to the bodyof the aeroplane, an air lshield for some of the paddles and an airscrew upon the axle of each paddle wheel as describe In testimony,whereof I have signed my name to this specification.

CARLAUGUST GROSSER.

